Visual information-based early warning method for coal dust explosion of coal preparation plant

Abstract

The invention discloses a coal preparation plant coal dust explosion early warning method based on visual information. The method comprises the following steps: 1, collecting and transmitting coal dust image data; 2, preprocessing the coal dust image; 3, separating overlapped coal dust particles, and recognizing the coal dust particles; fourthly, the computer judges the coal dust concentration in the area where the camera is located according to the coal dust particles recognized in the third step, and when the coal dust concentration exceeds a preset coal dust concentration alarm value, alarm information when an alarm is needed is sent out in the mode that a short message is sent to safety management and control personnel of the coal preparation plant. The method is simple in step, novel and reasonable in design, convenient to implement, capable of reasonably separating out coal dust overlapped particles, good in robustness, capable of effectively detecting the coal dust concentration, high in practicability, capable of being well applied to coal dust explosion early warning of a coal preparation plant, good in using effect and convenient to use and popularize.

Description

technical field [0001] The invention belongs to the technical field of safety in coal preparation plants, and in particular relates to a coal dust explosion early warning method in coal preparation plants based on visual information. Background technique [0002] In coal preparation plants with severe coal dust pollution, during the screening, crushing and transportation of raw coal, due to the volatilization and drying of coal moisture, a large amount of dust will be generated in the process of being vibrated, impacted and caused to fall, and the concentration of coal dust will reach a certain level. When combined with oxygen in the presence of an open flame, a vicious safety accident of coal dust explosion will occur at any time, causing great harm. And too much coal dust will cause serious wear and tear on expensive and sophisticated equipment and instruments, causing the aging of the machine, reducing the service life of precision instruments, and also causing the proble...

AI Technical Summary

Problems solved by technology

However, most of the early measurement methods were realized by manual operation, and the stability of the detection process was poor. There were large errors in the obtained results, and the accuracy was not high. Dust suppression work

In order to solve this problem, people proposed a method of monitoring and analyzing coal dust images in coal preparation plants based on visual information. At that time, in the existing technology, the early warning of coal dust explosion in coal preparation plants had not been well realized.

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